Apple Help Viewer vulnerable to buffer overflow

ID VU:566875
Type cert
Reporter CERT
Modified 2008-05-29T19:01:00



A vulnerability in the way Apple Help Viewer handles specially crafted URLs may allow an attacker to execute arbitrary code or cause a denial of service.


According to Apple Security Update 2008-003:

_ An integer underflow in Help Viewer's handling of help:topic URLs may result in a buffer overflow. Accessing a malicious help:topic URL may lead to an unexpected application termination or arbitrary code execution._
Note that this issue affects systems running Mac OS X prior to version 10.5.


A remote, unauthenticated attacker may be able to execute arbitrary code or cause a denial of service.


Apply Update
This issue is addressed in Apple Security Update 2008-003. An update for Mac OS X is available on Apple Downloads and via Software Update.

Vendor Information


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Apple Computer, Inc. __ Affected

Updated: May 29, 2008



Vendor Statement

We have not received a statement from the vendor.

Vendor Information

The vendor has not provided us with any further information regarding this vulnerability.


Refer to Apple Security Update 2008-003 for more information.

If you have feedback, comments, or additional information about this vulnerability, please send us email.

CVSS Metrics

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This issue was reported in Apple Security Update 2008-003. Apple credits Paul Haddad of PTH with reporting this issue.

This document was written by Chris Taschner.

Other Information

CVE IDs: | CVE-2008-1034
Severity Metric: | 8.68
Date Public: | 2008-05-28
Date First Published: | 2008-05-29
Date Last Updated: | 2008-05-29 19:01 UTC
Document Revision: | 6